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Guernsey Weather in December
December in Guernsey sees daytime temperatures around 12°C (54°F) and lows of 9°C (48°F) at night. As the wettest month of the year, keep in mind that rainfall is at its highest.
Rainfall in Guernsey in December
With frequent rain showers this month, having an umbrella on hand will keep you dry. Rain is expected on roughly 19 days, totalling around 131 mm (5.2 in) for the month. This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.
Temperature in Guernsey in December
In December, expect moderate temperatures in Guernsey, with highs of 12°C (54°F) and lows of 9°C (48°F) at night. Conditions are often most pleasant around the middle of the day. At 9°C (48°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.
Sunshine in Guernsey in December
The month has fewer sunny days, with around 61 hours of sunshine.December in Guernsey has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.
Guernsey Temperature in December
Min Temperature
9°C (48°F)
Max Temperature
12°C (54°F)
Chance of Rain
62%
Precipitation
131 mm (5.2 in)
Rainy days
19 days
Sunshine
61 hours
Percentage Sunshine
22%
Guernsey Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Guernsey - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Guernsey typically stay consistent throughout December, with daily highs averaging around 12°C (54°F). Nights are cold, with lows around 6°C (43°F).
Average temperatures in December
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather records for Guernsey in December
Browse day-by-day weather records for Guernsey spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Guernsey historical weather extremes in December
Our historical data for Guernsey spans 1976 to 2025, revealing these weather extremes.
- The warmest day in December was on December 10, 1994, with a maximum of 14°C (57°F).
- The lowest daytime temperature in December was 1°C (34°F), recorded on December 6, 1995.
- Nighttime temperatures dropped to -3°C (27°F) on December 10, 1987, marking the coldest December night on record.
Best Places in the United Kingdom in December
Find out more about the weather in the United Kingdom and which places have the best travel conditions in this month. See all of the United Kingdom in December →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Guernsey in December
The weather can swing between comfortable and chilly in December, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Expect heavy rainfall, so bring good rain protection and waterproof bags. With limited sunshine expected, sunglasses aren't a priority for packing.
What To Do in Guernsey in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming4/10 -
Cycling5/10 -
Walking5/10 -
Camping3/10 -
Outdoor sports5/10
Guernsey 3-Day Forecast
More climate data for Guernsey
See the full Guernsey climate overview or explore weather in the United Kingdom.
Popular in December
Where to go in December - average daytime high across popular destinations.
Torquay
11°C (52°F) London9°C (48°F) Blackpool9°C (48°F) Bath9°C (48°F) Manchester8°C (46°F) York8°C (46°F) Edinburgh8°C (46°F) Glasgow8°C (46°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
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